CN202038869U - Cooling and discharging mechanism for producing magnesium silicide - Google Patents
Cooling and discharging mechanism for producing magnesium silicide Download PDFInfo
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- CN202038869U CN202038869U CN2011201451880U CN201120145188U CN202038869U CN 202038869 U CN202038869 U CN 202038869U CN 2011201451880 U CN2011201451880 U CN 2011201451880U CN 201120145188 U CN201120145188 U CN 201120145188U CN 202038869 U CN202038869 U CN 202038869U
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- cooling
- discharging mechanism
- magnesium silicide
- water jacket
- discharge bucket
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Abstract
The utility model relates to production equipment, in particular to a cooling and discharging mechanism for producing magnesium silicide. The cooling and discharging mechanism comprises a discharge hopper, a water jacket and a powder discharge valve, wherein the water jacket is sleeved on the outer side wall of the discharge hopper; and the bottom part of the discharge hopper is connected with the powder discharge valve. By adopting the cooling and discharging mechanism for producing the magnesium silicide, the product quality is improved and the cooling and discharging mechanism has simple structure and high controllability.
Description
Technical field
The utility model is a kind of production unit, particularly a kind of cooling discharging mechanism that is used to produce magnesium silicide.
Background technology
Silane (SiH in the prior art
4), claim silicon tetrahydride again, be most important electronic gas, also be the unstripped gas of producing polysilicon, it has deep effect to fields such as microelectronics, photovoltaic, special cermacis, photoelectron, novel materials.At present, industry is produced silane and is mainly adopted catalytic disproportionation trichlorosilane method (UCC technology), lithium hydride reduction trichlorosilane method, sodium aluminum hydride (NaAlH
4) tetrafluoride reduced method, catalytic disproportionation Ethoxysilane and magnesium silicide method.Relative with other technologies, magnesium silicide method is advantages such as investment is little, technology simple, raw material is easy to get, the monopolization of inscience property right because of having, and are extensively adopted by domestic production manufacturer.Particularly in recent years along with the rise of photovoltaic industry, the demand to high purity silane and polysilicon increases day by day both at home and abroad, improves the research direction that becomes domestic all multiple enterprises with the development magnesium silicide method.(chemical formula is Mg to magnesium silicide
2Si), the development of magnesium silicide method had decisive meaning as one of magnesium silicide method most important material and technical bottleneck.Exploitation is efficient, continuously, the synthetic technology of safety and low consumption is the important development direction that magnesium silicide is produced.
The synthetic method of tradition magnesium silicide is that silica flour and magnesium powder are mixed in proportion, and puts into the intermittent type fixed bed, is being heated to about 500～650 ℃ under argon gas, nitrogen atmosphere or the vacuum, and it is reacted, synthesizing magnesium silicide, and chemical equation is:
2Mg?+?Si→?Mg
2Si?+?77.4?kJ/mol
Owing to when generating magnesium silicide, produce a large amount of heats, this makes when adopting the fixed bed device synthesizing magnesium silicide, run into serious material problems of excessive heat, be that the material reaction heat release causes localized hyperthermia, material at high temperature causes a series of problems such as magnesium evaporation, caking, magnesium silicide decompose, composition departs from.Simultaneously, fixed bed process is the mode of production of interval type normally, and it comprises charging, heats, is incubated, cools off and gets processes such as material, has fatal shortcomings such as production efficiency is lower, danger is high, energy consumption is big, the product caking is serious.
Relative gap bed process, continuous reaction process can better be controlled the inventory of reaction process and control participation reaction, and it is overheated to be difficult for causing.Simultaneously, the mode that continuous reaction process generally adopts the limit coronite to stir can prevent powder agglomeration, and homogeneous material and heat are beneficial to synthetic high-quality magnesium silicide.Therefore, continuous reaction process is the developing direction of large-scale production magnesium silicide.
The utility model content
The utility model mainly is to solve the deficiencies in the prior art, and a kind of cooling discharging mechanism that is used to produce magnesium silicide that guarantees the quality of product is provided.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of cooling discharging mechanism that is used to produce magnesium silicide, cooling discharging mechanism comprise discharge bucket, water jacket and discharging powder valve, and the outer side wall of described discharge bucket is with water jacket, and the bottom of described discharge bucket is connected with discharging powder valve.
Cooling discharging mechanism goes out bucket producing after good magnesium silicide powder cools off.
As preferably, the top of described discharge bucket is provided with the discharging visor, and the bottom sidewall of described water jacket is provided with entrance of cooling water, and the upper end sidewall of described water jacket is provided with cooling water outlet.
As preferably, the lower end of described discharge bucket is a back taper.
Therefore, the cooling discharging mechanism that is used to produce magnesium silicide that the utility model provides promotes quality product, and device structure is simple, the controllability height.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: as shown in Figure 1, a kind of cooling discharging mechanism that is used to produce magnesium silicide, cooling discharging mechanism comprises discharge bucket 1, water jacket 2 and discharging powder valve 3, the outer side wall of described discharge bucket 1 is with water jacket 2, the bottom of described discharge bucket 1 is connected with discharging powder valve 3, the top of described discharge bucket 1 is provided with discharging visor 4, the bottom sidewall of described water jacket 2 is provided with entrance of cooling water 5, the upper end sidewall of described water jacket 2 is provided with cooling water outlet 6, and the lower end of described discharge bucket 1 is a back taper.
Claims (3)
1. cooling discharging mechanism that is used to produce magnesium silicide, it is characterized in that: cooling discharging mechanism comprises discharge bucket (1), water jacket (2) and discharging powder valve (3), the outer side wall of described discharge bucket (1) is with water jacket (2), and the bottom of described discharge bucket (1) is connected with discharging powder valve (3).
2. the cooling discharging mechanism that is used to produce magnesium silicide according to claim 1, it is characterized in that: the top of described discharge bucket (1) is provided with discharging visor (4), the bottom sidewall of described water jacket (2) is provided with entrance of cooling water (5), and the upper end sidewall of described water jacket (2) is provided with cooling water outlet (6).
3. the cooling discharging mechanism that is used to produce magnesium silicide according to claim 1 and 2 is characterized in that: the lower end of described discharge bucket (1) is a back taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201451880U CN202038869U (en) | 2011-05-10 | 2011-05-10 | Cooling and discharging mechanism for producing magnesium silicide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201451880U CN202038869U (en) | 2011-05-10 | 2011-05-10 | Cooling and discharging mechanism for producing magnesium silicide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202038869U true CN202038869U (en) | 2011-11-16 |
Family
ID=44966326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201451880U Expired - Fee Related CN202038869U (en) | 2011-05-10 | 2011-05-10 | Cooling and discharging mechanism for producing magnesium silicide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202038869U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106742854A (en) * | 2017-01-16 | 2017-05-31 | 江西紫宸科技有限公司 | For material cooling, transfer, the magazine attachment and material transfer method that store |
-
2011
- 2011-05-10 CN CN2011201451880U patent/CN202038869U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106742854A (en) * | 2017-01-16 | 2017-05-31 | 江西紫宸科技有限公司 | For material cooling, transfer, the magazine attachment and material transfer method that store |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20140510 |